# NTN JL819349/JL819310 Tapered Roller Bearing - Inch Series, Open, Case Carburized Steel - MROSupply.com

***NTN JL819349/JL819310 is an inch series tapered roller bearing set consisting of cone JL819349 and cup JL819310. It features a straight bore, open design, and is constructed from case carburized steel for durability. This single row tapered roller bearing is suitable for applications requiring high radial and axial load capacity.***



## Product details:

- Catalog number: JL819349/JL819310
- SKU: 5046258
- Price: ***$95.89*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Taper Roller Bearing Full Assemblies](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-full-assemblies/)
    - [Taper Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.843 lb
- UPC: 4550253070221


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- B (in): 3.7402
  

  
- Bore type: Round
  

  
- Bore Type: Round
  

  
- Cone Number: JL819349
  

  
- Configuration: One
  

  
- Cup Number: JL819310
  

  
- D (in): 5.3150
  

  
- Enclosure: Open
  

  
- I.D.: 3.7402 in
  

  
- Lubrication: w/o Oil Hole
  

  
- Material: Case Carburized Steel
  

  
- O.D.: 5.315 in
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Precision rating: Class 4
  

  
- Precision Rating: Class 4
  

  
- R (in): 0.20
  

  
- r (in): 0.1000
  

  
- Style: Cone & Cup
  

  
- Type: Tapered Roller Bearing
  

  
- W: 0.7874 in
  

  
- Wi: 0.7874 in
  

  
- Width: 20
  

  
- Wo: 0.5512 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/64/22/6422118/1329_S_T0prz4G.png)
- [Drawing](https://documents.mrosupply.com/product_documents/HM/HM256849/HM2%2301/1329_S_HOePR0S.png)






## FAQ:

- How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints.
For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials.
In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.